This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A100809 #1 Feb 20 2005 03:00:00 %S A100809 2,5,8,10,17,18,20,25,29,32,34,37,40,41,45,50,53,58,61,68,72,73,74,80, %T A100809 82,85,89,90,97,98,100,101,106,109,113,116,122,125,128,136,137,145, %U A100809 146,148,149,153,157,160,162,164,170,173,178,180,181,185,193,194,197,200 %N A100809 Numbers that are a sum of two squares and not divisible by 13. %Y A100809 Cf. A000404, A098961. %K A100809 nonn %O A100809 1,1 %A A100809 Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Jan 06 2005